Sash-fastener.



srafrns JOI-IN HENRY MARSH, OF LONDON, ENGLAND.

SASH-FASTENER.

Specification of Letters Patent.

Patented Oct. 18, 1910.

Application filed June 25, 1910. Serial No. 568,866.

To all whom it may concern:

Be it known that l, Jol-1N HENRY MARSH, a subject of the King of GreatBritain, and resident of 195 Markhouse road, Walthamstow, London,England, engineer, have invented certain new and useful Improvements inSash-Fasteners, of which the following is a specification.

This invention relates to holders for windows with sliding sashesespecially house, railway carriage, motor and carriage windows of thetype in which a spring-pressed plunger having a roller on one member ofthe window is adapted to engage the other member of the window and to belocked in position, and has for its object to provide an improvedconstruction of such holders. The window has on the edge of the slidingpart a corrugated strip of metal, while the frame is provided with aspring-pressed plunger adapted to coact therewith. The plunger isadapted to slide in a guide frame within which a coiled spring or rubberbuii'er is disposed. The outer end of the plunger is provided with aroller and the inner end is beveled for a purpose to be hereinafter setforth.

In accordance with this invention a sliding member is arranged in theframe of the window and transversely of the plunger, said sliding memberhaving an aperture through which said plunger can slide and having aninclined part adjacent to said aperture and adapted to coact with thebeveled end of the plunger, so that when the member is slid .the end ofthe plunger rides up the incline and the outer end of the plunger isheld in engagement with the corrugated strip on the sliding part of thewindow in such manner as to prevent the plunger being forced back andconsequently to prevent the window from being moved. Preferably eachsliding part of the window is provided with two holders, one on eachside.

Referring to the accompanying drawings, Figure l is a sectionalelevation showing one form of window holder constructed in accordancewith this invention as applied to the lower sliding sash of a window.Fig. 2 is a face view of a detail. Fig. 3 is an elevation at rightangles to the view shown in Fig. 2. Fig. 4 is a fragmentary face view inthe direction of the arrow A, Fig. l and Fig. 5 is a section on line 5-5of Fig. 1,

a is a strip of corrugated metal secured to the edge of the lowersliding sash l) of the window.

c is a plunger mounted in a frame d and provided at its outer end with aroller e pivoted on a pin f between lugs g g on said plunger.

is a coiled spring disposed within the frame d and adapted to press on ashoulder j on the plunger c. A corresponding spring* pressed plunger isarranged behind the above-mentioned plunger in the plane of the uppersliding sash of the window.

/c is a member arranged to be slid transversely of the plungers in aframe m and provided with apertures a through which said plungers canslide. Adjacent to each aperture a is an inclined part 0 adapted tocoact with the beveled end p of the plunger c when the member 7s is slidand for this purpose the member 7c is provided with a neck g passingthrough a plate r secured to the frame s 0f the window and with a knobt.

In use as the sash Z) is slid the corrugated strip ai rides over theroller e on the plunger o and causes said plunger to be moved againstthe action of its spring L., the end of the plunger passing through theaperture n in the member As will be seen the sash Z) will be retained atany desired height by the coacting plunger and corrugated strip. When itis desired to prevent the window from being moved the member 7c is slidso that the aperture a and the plunger c are out of register, as shownin Fig. 4, so that the incline 0 coacting with the beveled end j; of theplunger c causes the roller c to b-e pressed against the corrugatedstrip a and prevents the window from being moved since the plunger ccannot be forced back to allow the corrugations to pass.

If desired a rubber buffer may be substituted for the coiled spring L.The conliguration of the corrugated strip a and the stroke of theplunger c will depend on the weight of the window to be supported.

By the use of such window holders the grip on the sliding sashesprevents the windows from rattling.

Claim:

A sash fastener, comprising a corrugated strip adapted to be secured toa sash, a casing adapted to be secured to a window frame, a springpressed plunger in the cas ing and having its outer end beveled andprojecting through an aperture in the casing, u ruller mounted 011 theinner end of l being provided on its inner face with un the plunger, akeeper frame Secured to the lnellned surface leadlng t0 the apertureOuter end of the caslng, and 2L bar mounted thereof.

entirely Within the Window frame to slide JOHN HENRY WAR-SH.transversely to the plunger and having an VVtnesses: aperture throughwhich the beveled end of H. D. JAMESON,

the plunger is adapted to project, said bar W. DAVIES.

